op flint



M. W. HARD.

SHANK AND HANDLE.

I APPLICATION FILED APR. 22. 1918.

1,3 14,078. Patented Aug. 26, 1919.

INVENTOR fi/erzv/l MM: Hard ATTORNEY STATES PATENT OFFICE.

MERRILL WILKINS HARD, 0F FLINT, MICHIGAN, ASSIGNOR, BY MESNE ASSIGNMENTS, '10 COPEMAN DEVELOPMENT COMPANY, OF FLINT, MICHIGAN, A CORPORATION OF MICHIGAN.

Specification of Letters Patent.

SHANK AND HANDLE.

Patented Aug. 26, 1919.

To all whom it may 0011 cam Be it known that I, MERRILL \VILKINS HARD, a citizen of the United States, residing at Flint, in the county of Genessee and State of Michigan, have invented a new and -useful Improvement in Shanks and Handles, of which the following is a specification.

This invention relates to a handle or wing for spindles, screw shanks and similar members, and the method of manufacturing and applying the same.

The object of this invention is to provide a handle and a wing which can be made as a stamping, thereby saving expense and at the same time making a very neat and ornamental handle. The handle or wing is intended primarily for the screw of a grease cup, but obviously may be used in other connections, and it is, therefore, not claimed specifically in such a connection.

In the drawings,

Figure 1 shows the blank.

Fig. 2 is a perspective of the blank after the first operation.

Fig. 3 is a perspective of the blank after the second operation.

Fig. 4 is an end elevation of either of the structures shown in Figs. 2 and 3.

Fig. 5 is an elevation showing how the folded blank and screw shank are assembled.

Fig. 6 shows the screw with the wing affixed thereto.

Such a blank as shown in Fig. 1 is punched out of a sheet of metal. It is then folded along its median line by suitable dies which perform this folding and also cup each side of the stock to the opposite sides of the median line. The fold is not a complete one but the two sides are folded so that they are substantially in V relation as shown in Fig. 4. The next operation is to pierce the crown of the folded member as at a (Fig. 3). This has a truncatedcircular perforation which is adapted to exactly fit over the flattened plain end of the shank b, which for its major portion is screw-threaded as shown at Fig. 5.

Obviously when the member as shown in Fig. 3 is inverted and placed in position as shown in Fig. 5, it may be dropped over the flattened end I), the perforation a registering therewith. By suitable dies and pressure the cupped center portion of the wing may be gathered together and pressed upon the threads of the threaded brass shank b into the position shown in Fig. 6. This will draw the ends of the wing down slightly as the cupped portion is gathered about the threads of the shank, but this does not matter, but in fact really adds to the ornamental appearance of the wing or handle. The pressure is applied with some kind of a heavy implement, preferably dies, and consequently the metal of the wing is driven into the threads of the shank as the dies press the cupped portion of the folded wing about the shank. This pressing action, therefore, not only folds the straight portions of the wing together so it is almost impossible to distinguish them from a single solid piece, but it also locks the handle onto the shank by embedding the threads of the shank into the metal of the handle, as already alluded to. This makes a handle or wing which can be manufactured very cheaply and rapidly by reason of the stamping operations and which at the same time is a very neat and simple device.

What I claim is:

1. A handle and shank, comprising a shank provided with projecting portions and a handle in the form of a V shaped metal piece folded upon the projections in the shank to embed the same in the handle.

2. A shank and handle, comprising a shank provided with threads and a handle in the form of a stamped piece longitudinally doubled upon itself and upon the threads of the shank to lock the shank to the handle.

3. A shank and handle, comprising a threaded shank having an end forming a key, and a handle in the form of a metal piece with a key hole punched to fit over the key-like end of the shank and which is longitudinally doubled upon itself with the key-like end fitting into the key hole and pressed upon the threads of the shank to embed the same and atlix the handle to the shank.

4. A shank and handle, comprising a threaded shank provided with a flattened end, and a handle in the form of a piece doubled upon itself and cupped at the center, with a key perforation in the crown of the cup adapted to fit over the flattened shank end, to key the handle and shank together, the said cup portion of the handle being embedded in the threads of the shank When the doubled handle piece is pressed together.. r

5. The method: of making and applying handles to shanks, comprising the folding of a sheet of metal longitudinally onto the shank to bring the opposite sides together and lofck-tlie handle to the end of the shank;

6. The method of manufacturing and ap V plying a handle to a comprising the folding of,,a piece of metal longitudinally upon itself and i ipoii projections of the shank ,to flil th handle to the' shank. i

v 7, The method of mapufatfiur'in and applyinga handle to a threaded sha'ril'z, cam}.

" prising" the fold'ingof a piece ofimetal of V mess seamen upon itself and upon the threads of the shank end to embed the"liietal of the piece of metal into the threads and aflix the handle'to' the shank.

The method of manufacturing and ap plying a handle to a threaded shank With a key -l-i-ke end, Which comprises the forming of a piece of metal into V cross section and cupping.- the same and perforating it in" the crown of the cup; and the fitting of the perforated drawn-"eve? the key-like end of the shank and folding the metal upon itself to force the cl pped portions into' the threads 7 and cause the" other portions" to lie against each other. v I V In Witness whereof I have liereuiito set my hand (an the12th'day of A ril, 1918.

MERRIILL WILKINS HAERD. 

